Improved apparatus for cutting and shearing- metal



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THOMAS C. ROBINSON, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO GEORGE SA'NBORN, OF NEW YORK.

Letters Patent No. 92,368, datel Julyl, 1869.

IMPROVE!) APPARATUS FOR CUTTING AND SHEARING- METAL.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be it known that I, THOMAS G.ROB1Nsoiv, of Boston, Suifolk county, State of Massachusetts, have invented a new and improved Hydraulic Metal-Cutter, for Cutting Wire, Sac.; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon. V

The nature of my invention consists in a platfinm, with an upright frame, with which is connected a hydraulic press, with two cylinders and rams, actuated by a handle, cog-wheel, and rack, one of which rams carries a movable perforated plate, working with its face close against another fixed perforated plate, into which perfor-ations metallicwires, rods, or bars being introduced, the motion of the said plate cuts the said bars, &c., oii'. Y

At the further end of .the frame is another ram, which bears a half of a pair of shears, moving up against another fixed -half above, for cutting sheetmetal; and at the side of the frame is a steam-cylinder, horizontally placed, with, opposite each end of it, a pump horizontally placed, and each actuated by a piston-rod from the steam-cylinder, these two pumps actuating, at pleasure, the two rams above described.

In the drawings annexed- Figure 1 is a side view of my invention;

Figure 2 is an end view; and

Figure 3 is a section ofiig. 1, at the line A A.-

In the drawings- B, gl 1, is the platform.

C, fig, 1, is the frame.

D, iigs. 1 and 2, is the upright pump.

E, iigs. l-and 2, is the piston-rod ofthe same.

F, iigs. 1 and-2, is the upper portion of the pistonrod E, having one side ofit fashioned to a'rack.

G, iig. 1, is a cog-wheel, to one side of which is attached a handle, or lever, H, fig. 1.

On the left, in iig. 1, of the rack F, is a roller, I, borne by two ears, attached to the frame C, (seen in tig. 1,) upon which roller, one (the smooth) sideI of the rack F impinges.

The two ears are marked CX CX, iig. 2.

J, fig. 3', is the first ram-cylinder of the hydraulic press.

K, fig. 1, is the perforated fixed-rod cutter-plate. (The movable plate, actuated by the ram of the ram# cylinder J, is behind it.) v

L, iig. 3, is the second ram-cylinder, whose ram bears the lower half, M, fig. l, of a pair of shears, the upper half of the shears, N, iig. 1, being borne by the extreme right-hand portion of the frame C.

It is held by. a shaft, O, fig. 1, projecting upward through the frame C, and is held in place bfy a wedge.

I am thus able to remove it at pleasure, and sub- Stitute for it a punch, whenever desirable.

Both the upper half', N, and the lower half, M, of the shears are capable of rotation.

P, fig. 1, is a steam-cylinder, horizontally placed, re ceiving steam, (or compressed air,) in any convenient method, and carrying within it a piston, with a double rod, (see fig. 3,) one, Q, iig. 1, projecting out of the cylinder to the right, and the other,{-, tig. l, to the left.

These piston-rods Q and R pass lrespectively into the pumps QX, iig. 1, and RX, fig. 1, each `of these pumps communicating respectively with the ram-cylinders J and L, opposite to which they are seen located in the drawing.

In fig. 3, there may be seen in section the two ramcylinders and rams, the connecting-tube S S between the two, and a section of .the steam-cylinder, and the two horizontal pumps.

And the operation of my machine is as follows: V'Vhen I wish to operate by hand, I, having my pumps duly charged with water, or other fluid, passa rod, wire, or bar of metal, through one of the perforations (of Vappropriate size) in the plate'K, and its mate, .(beyond j it.) Then, raising the handle'H, I, by means of the cog-wheel G, (working in 'the rack F,) press down the piston-rod E, being assisted therein by the rotation of the roller I, into the pump D, thus causing the ram in the ram-cylindervJ to ascend, carrying with it the movable perforated plate, (not seen,) mate of the fixed plate K. The sides of the perforations, (which I pre.`

fer tn arm with steel bushings,) acting as shears, cut ofi` the rod or bar, and the object of my device is ac complished; and the shears MN are actuated in the same manner by the handle H.

When I wish to cut a long piece of sheet-metal, I .partially rotate the two halves of shears M and N till they are at right angles to the positionls'howu in the drawing, lixiug the blades iu the desired position by means of the wedge shown above.

Another mode by which I operate my machine, is

by meansv of the steam or compressed-air cylinder P,

which; by means of its double piston-rod, (one emerging from each end, as seen in gs. 1 and 3,) actuates pistons in the pump-cylinders RX and QX, each of these pump-cylinders actuating respectively the ram in the ram-cylinders, in front of which they are shown in the drawing.

I sometimes have another cog-wheel, rack, and leverhandle, for the sheet-metal cutter ram, allin the same machine.

Having thus fully described my invention, Ido not claim separately the elements of the machine, but

The improved hydraulic metal-cutter, constructed and operating in the manner described.

Vitnesses: T. C. ROBINSON.

LEMUEL l. J Enns, JAMES BUCKNER. 

